# encoding:utf-8

import os
from config import conf, load_config
from channel import channel_factory
from common.log import logger
from plugins import *
import signal
import sys

def sigterm_handler_wrap(_signo):
    old_handler = signal.getsignal(_signo)
    def func(_signo, _stack_frame):
        logger.info("signal {} received, exiting...".format(_signo))
        conf().save_user_datas()
        if callable(old_handler): #  check old_handler
            return old_handler(_signo, _stack_frame)
    signal.signal(_signo, func)

def run():
    try:
        # load config
        load_config()
        # ctrl + c
        sigterm_handler_wrap(signal.SIGINT)
        # kill signal
        sigterm_handler_wrap(signal.SIGTERM)

        # create channel
        channel_name=conf().get('channel_type', 'wx')

        if "--cmd" in sys.argv:
            channel_name = 'terminal'

        if channel_name == 'wxy':
            os.environ['WECHATY_LOG']="warn"
            # os.environ['WECHATY_PUPPET_SERVICE_ENDPOINT'] = '127.0.0.1:9001'

        channel = channel_factory.create_channel(channel_name)
        if channel_name in ['wx','wxy','terminal','wechatmp','wechatmp_service']:
            PluginManager().load_plugins()

        # startup channel
        channel.startup()
    except Exception as e:
        logger.error("App startup failed!")
        logger.exception(e)

if __name__ == '__main__':
    run()